Bone Cement Reinforced with Zirconium Oxide Particles

Author(s):  
H.H. Rodríguez ◽  
M.C. Piña
RSC Advances ◽  
2019 ◽  
Vol 9 (39) ◽  
pp. 22355-22365 ◽  
Author(s):  
Satu Lönnrot ◽  
Valtteri Suorsa ◽  
Johanna Paajanen ◽  
Timo Hatanpää ◽  
Mikko Ritala ◽  
...  

Zirconium oxide was formed into submicron fibers to improve the Sb(v) separation performance compared to a conventional aggregate material.


Author(s):  
Jennifer R. Melander ◽  
Rachel A. Weiler ◽  
Bradley D. Miller ◽  
Kathleen V. Kilway ◽  
J. David Eick

There has been little change in the formulation of bone cements since Sir John Charnley first developed them in the 1970s. Bone cements are methacrylate based systems packaged in two components [1]. The powder component contains a mixture of polymethyl methacrylate (PMMA), methyl methacrylate-styrene-copolymer, and a radio opacifier (either barium sulfate or zirconium oxide) [2]. The second component is a liquid monomer typically containing methyl methacrylate, N, N-dimethyl-p-toluidine (activator), and hydroquinone. Flexural strength and flexural modulus of bone cements range between 60–75 MPa and 2.2–3.3 GPa, respectively [3, 4]. ISO 5833 requires bone cements to have a strength greater than 50 MPa and a modulus greater than 1.8 GPa [5].


2021 ◽  
Vol 1037 ◽  
pp. 552-557
Author(s):  
Valery V. Alisin ◽  
Mikhail N. Roshchin ◽  
Janusz Gladyszewski

The issues of the process modeling of wear-resistant covers infusion of the NiCrBSi system, strengthened by the addition of solid powder materials are studied in the article. The results of a numerical study of the effect of heat current and thermophysical properties of materials on the process of heating and infusion of the cover are presented. The statements about the advantages of powders based on ZrO2 are demonstrated. Particular attention is paid to the issue of cracking in the cover after infusion. The assumption is substantiated about the positive effect of the addition of ZrO2 powders on the increase in the crack resistance of the cover.


2019 ◽  
Vol 26 (2) ◽  
pp. 024001
Author(s):  
Dhruv Shah ◽  
Stephan Bahr ◽  
Paul Dietrich ◽  
Michael Meyer ◽  
Andreas Thißen ◽  
...  

2001 ◽  
Vol 99 (7) ◽  
pp. 28-30 ◽  
Author(s):  
Z. Liqun ◽  
Z. Qunpeng ◽  
L. Jianhua

2004 ◽  
Vol 14 (3) ◽  
pp. 126-132 ◽  
Author(s):  
David Megías-Alguacil

Abstract The linear viscoelastic regions (L.V.R.) of suspensions of zirconium oxide particles were determined and characterized through the so-called "critical parameters". These are the values of shear-stress and strain at the crossover between the linear and the non-linear viscoelastic responses. From these magnitudes, the cohesive energy between the particles is calculated as a function of volume fraction of solids and at different electrolyte concentrations. The oscillatory measurements were carried out using a constant-stress rheometer at a fixed frequency of 1 Hz and increasing shear-stress. The suspensions cover a volume fraction range between 3% - 25% with electrolyte (sodium chloride) concentrations of 10-1 M, 10−2 M, 10−3 M and 10−5 M. Two different kinds of ZrO2 particles were used: commercially obtained -with no defined geometry- and spheres synthesized by us following the method described by Aiken, Hsu and Matijevic [1].


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